Cement production raw material crushing and screening equipment

Abstract

The utility model particularly relates to cement production raw material crushing and screening equipment which comprises a crushing box, a feeding hopper and a discharging pipe are fixedly installed on the upper side and the periphery of the crushing box respectively, crushing rollers meshed with each other are rotatably installed on the upper side of an inner cavity of the crushing box, and an obliquely-arranged material guide plate is fixedly installed in the crushing box. The positions and angles of the material guiding plate and the discharging pipe correspond to each other, a screening net is arranged on the upper side of the material guiding plate, a first motor is fixedly installed at the bottom of an inner cavity of the crushing box, a driven rod is fixedly installed at the lower end of the screening net, and a first limiting plate and a second limiting plate are fixedly installed on the upper side and the lower side of the periphery of the driven rod correspondingly. According to the cement raw material screening device, the screening net can be driven to rotate, the screening net can also be driven to move up and down, and the screening effect of cement raw materials is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to cement production and processing related technical field, concretely is a kind of cement production raw material crushing and screening equipment. BACKGROUND

[0002] As the main raw material of cement production, limestone needs to be crushed by a crushing device before being produced into cement, and currently, the limestone particles crushed by the crushing device are of different sizes and need to be refined and screened by a screening device. The existing crushing device does not have a screening device, so the user needs to circulate the limestone, resulting in low work efficiency, high labor intensity and waste of a large amount of human resources.

[0003] The patent document with publication number CN212383773U provides a cement production raw material crushing and screening equipment. The device has two counter-rotating crushing rollers that can crush limestone blocks. At the same time, the motor two output shaft drives the screening net to move up and down, which can screen limestone particles. However, the device can only drive the screening net to move up and down through the deflection wheel, which causes the crushed raw materials to move to the lower side of the screening net, which obviously affects the screening operation. Therefore, we propose a cement production raw material crushing and screening equipment. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a cement production raw material crushing and screening equipment to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cement production raw material crushing and screening equipment, including crushing box, the crushing box upper side and periphery are fixedly installed with feeding hopper and discharge pipe respectively, the crushing box inner chamber upper side is rotatably installed with mutually occlusal crushing roller, the crushing box is fixedly installed with the guide plate of inclined arrangement in the cavity, the guide plate and discharge pipe position and angle correspond to each other, the guide plate upper side is equipped with screening net, the crushing box inner chamber bottom is fixedly installed with first motor, the screening net lower end is fixedly installed with driven rod, the first motor upper end is fixedly installed with driving rod that is inserted with driven rod lower end through its output shaft, the driving rod periphery is fixedly installed with driving gear, the crushing box is rotatably installed with driven gear that is meshed with driving gear, the driven rod periphery upper and lower sides are fixedly installed with first limit plate and second limit plate respectively, the driven gear upper end rotating shaft is fixedly installed with movable plate of inclined arrangement, the movable plate periphery is between first limit plate and second limit plate.

[0006] Preferably, a crushing cavity is formed in the upper side of the crushing box and is in communication with the lower end of the feeding hopper, the two crushing rollers are rotatably installed in the crushing cavity, driving gears are fixedly installed on the periphery of the two crushing rollers and are connected with each other, the second motor is fixedly installed on the periphery of the crushing box, and the rotating shaft of the crushing roller on one side is fixedly connected with the output shaft of the second motor.

[0007] Preferably, a limiting rotating seat is fixedly installed on the inner wall of the crushing box, the driven gear is rotatably installed on the lower side of the limiting rotating seat, the limiting insertion hole is formed in the upper end of the driving rod, and the limiting insertion rod is fixedly installed on the lower end of the driven rod and is inserted into the limiting insertion hole.

[0008] Preferably, the screening net is in the shape of a funnel, the through cavity is formed in the driven rod and is in communication with the middle part of the upper end of the screening net, the material guiding hole is formed in the upper side of the periphery of the through cavity, and the sealing pin is insertedly installed in the through cavity.

[0009] Preferably, the movable ring is sleeved on the periphery of the driven rod, the limiting sliding cavity is formed in the lower side of the periphery of the through cavity, the limiting sliding block is fixedly installed on the lower side of the periphery of the sealing pin and is slidably connected with the limiting sliding cavity, and the outer end of the limiting sliding block is slidably installed in the movable ring.

[0010] Preferably, the positioning ring is rotatably installed on the periphery of the first limiting plate, the positioning ring is insertedly connected with the upper end of the first motor through the telescopic sleeve, the electric push rod is fixedly installed on the upper end of the positioning ring, and the output shaft of the upper end of the electric push rod is fixedly connected with the lower end of the movable ring.

[0011] Compared with the prior art, the device has the advantages that:

[0012] The cement production raw material crushing and screening device can drive the screening net to rotate through the driven rod and the driving rod, and can drive the screening net to move up and down through the meshing connection between the driving gear and the driven gear, the clamping connection of the movable plate and the first limiting plate and the second limiting plate, and the inclination of the movable plate, so that the movement track of the screening net is enriched, and the screening effect of the limestone is improved.

[0013] The cement production raw material crushing and screening device has the through cavity formed in the driven rod and the sealing pin arranged in the through cavity, and the material guiding hole can be opened and closed through the electric push rod, so that the limestone blocked by the screening net can be collected, and the raw material recovery efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a crushing box external structure schematic view of the utility model;

[0015] Figure 2 It is a crushing box and screening net internal structure schematic view of the utility model;

[0016] Figure 3 It is the inside structure schematic view of the crushing box of the utility model;

[0017] Figure 4 It is the outside structure schematic view of the crushing roller of the utility model;

[0018] Figure 5 It is the inside split structure schematic view of the movable plate of the utility model;

[0019] Figure 6 It is the inside split structure schematic view of the sealing pin of the utility model.

[0020] In the drawing:

[0021] 1, crushing box; 11, feeding hopper; 12, discharge pipe; 13, screening net; 14, guide plate;

[0022] 2, crushing cavity; 21, crushing roller; 22, driving gear; 23, second motor;

[0023] 3, first motor; 31, driving rod; 32, driven rod; 33, limiting insertion rod; 34, limiting insertion hole; 36, driving gear; 37, driven gear; 38, movable plate; 381, first limiting plate; 382, second limiting plate; 39, limiting rotary seat;

[0024] 4, through cavity; 41, guide hole; 42, sealing pin; 43, positioning ring; 44, electric push rod; 45, movable ring; 46, limiting sliding block; 47, limiting sliding cavity; 48, telescopic sleeve. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-6The utility model provides a technical scheme: a cement production raw material crushing and screening equipment, including crushing box 1, crushing box 1 upside and periphery are fixedly installed with feed hopper 11 and discharge pipe 12 respectively, the mutually occlusal crushing roller 21 is rotatably installed to crushing box 1 inner chamber upside, crushing box 1 is fixedly installed with the guide plate 14 of inclination setting in the inner chamber, the position and the angle of guide plate 14 and discharge pipe 12 correspond to each other, the screening net 13 is equipped with in guide plate 14 upside, the first motor 3 is fixedly installed with the driven rod 32 of the fixed installation of screening net 13 lower extreme, the driving rod 31 of the lower extreme insertion of the output shaft fixed installation of first motor 3 is inserted to the driving rod 32, the driving gear 36 of driving rod 31 periphery fixed installation is inserted, the driving gear 37 of meshing connection of driving gear 36 is rotatably installed in crushing box 1, the first limiting plate 381 and the second limiting plate 382 of the fixed installation of first limiting plate 381 and second limiting plate 382 of driving rod 32 periphery upper and lower sides respectively, the movable plate 38 of inclination setting is fixedly installed to the driving gear 37 upper end pivot, and movable plate 38 periphery is between the first limiting plate 381 and the second limiting plate 382.

[0027] Working principle: in use, through feed hopper 11, the limestone to be crushed is poured into crushing box 1, and the limestone falling between the two crushing rollers 21 can be crushed by the two opposite rotating crushing rollers 21, and the crushed limestone falls on the upper end of the screening net 13;

[0028] When the crushed limestone needs to be screened, the first motor 3 is started, the first motor 3 drives the screening net 13 to rotate through the insertion connection between the output shaft and the driving rod 32 and the driving rod 31, the rotating driving rod 31 drives the inclined movable plate 38 to rotate through the meshing effect between the driving gear 36 and the driving gear 37, the movable plate 38 is connected with the first limiting plate 381 and the second limiting plate 382 through the clamping effect between the periphery of the movable plate 38 and the first limiting plate 381 and the second limiting plate 382, and because the driving rod 32 and the driving rod 31 are inserted with each other, the rotating movable plate 38 can drive the screening net 13 to move up and down when the screening net 13 rotates, improving the screening effect of the limestone, the guide plate 14 is arranged to guide the limestone falling on the upper end thereof, and the limestone can be recycled in cooperation with the discharge pipe 12.

[0029] Further description of the above technical scheme: a crushing cavity 2 is formed in the upper side of the inner chamber of the crushing box 1 and is in communication with the lower end of the feed hopper 11, the two crushing rollers 21 are rotatably installed in the crushing cavity 2, the driving gears 22 are fixedly installed on the periphery of the two crushing rollers 21 and are in meshing connection with each other, the second motor 23 is fixedly installed on the periphery of the crushing box 1, and the output shaft of the second motor 23 is fixedly connected with the pivot of the one-side crushing roller 21.

[0030] Specifically, the second motor 23 is arranged, and the output shaft of the second motor 23 is connected to the two crushing rollers 21 in the crushing cavity 2 through the meshing of the two drive gears 22, so that the two crushing rollers 21 can rotate relatively to ensure the crushing effect on the limestone.

[0031] As a further description of the above technical scheme: the limiting rotating seat 39 is fixedly installed on the inner wall of the crushing box 1, the driven gear 37 is rotatably installed on the lower side of the limiting rotating seat 39, the limiting insertion rod 33 is fixedly installed on the lower end of the driven rod 32 and is inserted into the limiting insertion hole 34 on the upper end of the driving rod 31.

[0032] Through the insertion connection between the limiting insertion hole 34 and the limiting insertion rod 33, the rotating driving rod 31 can drive the driven rod 32 to rotate, and the driven rod 32 can move up and down on the upper end of the driving rod 31, thereby providing the conditions for the rotation and up-and-down movement of the screening net 13.

[0033] As a further description of the above technical scheme: the screening net 13 is in a funnel shape, the through cavity 4 is formed in the driven rod 32 and is in communication with the middle part of the upper end of the screening net 13, the guide hole 41 is formed on the outer periphery of the upper side of the through cavity 4, the sealing pin 42 is inserted and installed in the through cavity 4, the movable ring 45 is sleeved on the outer periphery of the driven rod 32, the limiting sliding cavity 47 is formed on the outer periphery of the lower side of the through cavity 4, the limiting sliding block 46 is fixedly installed on the outer periphery of the lower side of the sealing pin 42 and is in sliding connection with the limiting sliding cavity 47, the outer end of the limiting sliding block 46 is slidingly installed in the movable ring 45, the positioning ring 43 is rotatably installed on the outer periphery of the first limiting plate 381, the positioning ring 43 is in insertion connection with the upper end of the first motor 3 through the telescopic sleeve 48, the electric push rod 44 is fixedly installed on the upper end of the positioning ring 43, and the output shaft of the upper end of the electric push rod 44 is fixedly connected with the lower end of the movable ring 45.

[0034] Specifically, after the limestone is screened by the screening net 13, part of the limestone with large particles is blocked on the upper end of the screening net 13. When it is necessary to collect these blocked limestone, the electric push rod 44 is started, the movable ring 45 is driven to move by the output shaft of the electric push rod 44, the movable ring 45 moves downward through the sliding connection between the limiting sliding block 46 and the inner wall of the movable ring 45, the sealing pin 42 moves downward in the through cavity 4, so that the through cavity 4 and the guide hole 41 are in communication, and the limestone can fall on the upper end of the guide plate 14, and then the limestone can be recycled through the discharge pipe 12.

[0035] Through the sliding connection between the first limiting plate 381 and the positioning ring 43 and between the limiting sliding block 46 and the movable ring 45, when the driven rod 32 rotates, interference between the driven rod 32 and the positioning ring 43 and the movable ring 45 is avoided.

[0036] The telescopic sleeve 48 is arranged and connected through rotation between the first limiting plate 381 and the positioning ring 43, and when the driven rod 32 moves up and down, the electric push rod 44 and the sealing pin 42 can move up and down with the driven rod 32.

[0037] The limiting sliding block 46 is connected through sliding between the limiting sliding cavity 47 and the movable ring 45, and when the electric push rod 44 drives the movable ring 45 to move up and down, the movable ring 45 can drive the sealing pin 42 to move up and down in the through cavity 4.

[0038] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A cement production raw material crushing and screening plant comprising a crushing box (1), characterized by: The upper side and the periphery of the crushing box (1) are respectively fixedly installed with a feeding hopper (11) and a discharge pipe (12), the upper side of the inner cavity of the crushing box (1) is rotatably installed with crushing rollers (21) that are mutually engaged, the crushing box (1) is fixedly installed with a guide plate (14) that is arranged obliquely in the inner cavity, the guide plate (14) and the discharge pipe (12) are mutually corresponding in position and angle, the upper side of the guide plate (14) is provided with a screening mesh (13), the bottom of the inner cavity of the crushing box (1) is fixedly installed with a first motor (3), the lower end of the screening mesh (13) is fixedly installed with a driven rod (32), the upper end of the first motor (3) is fixedly installed with a driving rod (31) that is inserted with the lower end of the driven rod (32) through the output shaft thereof, the periphery of the driving rod (31) is fixedly installed with a driving gear (36), the inner cavity of the crushing box (1) is rotatably installed with a driven gear (37) that is meshingly connected with the driving gear (36), the periphery of the driven rod (32) is respectively fixedly installed with a first limiting plate (381) and a second limiting plate (382) on the upper side and the lower side, the upper end of the driven gear (37) is fixedly installed with an active plate (38) that is arranged obliquely at the rotating shaft thereof, and the periphery of the active plate (38) is arranged between the first limiting plate (381) and the second limiting plate (382).

2. A cement production raw material crushing and screening apparatus according to claim 1, characterized in that: The upper side of the inner cavity of the crushing box (1) is provided with a crushing cavity (2) that is in communication with the lower end of the feeding hopper (11), the two crushing rollers (21) are rotatably installed in the crushing cavity (2), and the periphery of the two crushing rollers (21) is respectively fixedly installed with driving gears (22) that are meshingly connected with each other, the periphery of the crushing box (1) is fixedly installed with a second motor (23), and the rotating shaft of one of the crushing rollers (21) is fixedly connected with the output shaft of the second motor (23).

3. A cement production raw material crushing and screening apparatus according to claim 1, characterized in that: The inner wall of the crushing box (1) is fixedly installed with a limiting rotating seat (39), the driven gear (37) is rotatably installed on the lower side of the limiting rotating seat (39), the upper end of the driving rod (31) is provided with a limiting insertion hole (34), and the lower end of the driven rod (32) is fixedly installed with a limiting insertion rod (33) that is inserted with the limiting insertion hole (34).

4. A cement production raw material crushing and screening apparatus according to claim 1, characterized in that: The screening mesh (13) is arranged in a funnel shape, the inner cavity of the driven rod (32) is provided with a through cavity (4) that is in communication with the middle part of the upper end of the screening mesh (13), the periphery of the through cavity (4) is provided with a guide hole (41) on the upper side, and the through cavity (4) is insertedly installed with a sealing pin (42).

5. A cement production raw material crushing and screening apparatus according to claim 4, characterized in that: The periphery of the driven rod (32) is sleeved with an active ring (45), the periphery of the through cavity (4) is provided with a limiting sliding cavity (47) on the lower side, the lower side of the periphery of the sealing pin (42) is fixedly installed with a limiting sliding block (46) that is slidingly connected with the limiting sliding cavity (47), and the outer end of the limiting sliding block (46) is slidingly installed in the active ring (45).

6. A cement production raw material crushing and screening apparatus according to claim 5, characterized in that: The periphery of the first limiting plate (381) is rotatably installed with a positioning ring (43), the positioning ring (43) is inserted with the upper end of the first motor (3) through an elastic sleeve (48), the upper end of the positioning ring (43) is fixedly installed with an electric push rod (44), and the output shaft of the upper end of the electric push rod (44) is fixedly connected with the lower end of the active ring (45).

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